<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8"/>
    <title>　</title>
    <link rel="stylesheet" type="text/css" href="css/style.css">
    <style type="text/css">
      .page {
        color: #ffffff;
        -webkit-text-stroke: 1px #000;
        background-position: center;
        background-size: cover;
        background-repeat: no-repeat;
        -webkit-filter: grayscale(100%);
        /*background-image: url('https://source.unsplash.com/random/1072x1448');*/
      }

      #apm, #date {
        font-weight: 800;
      }
    </style>
</head>

<body>
    <div class="page">
      <div class="hitokoto_container"></div>

      <div class="time_container">
        <div class="time" id="time">00:00</div>
        <div class="date" id="date">1月1日</div>
      </div>

      <div class="weather_container"></div>
    </div>


    <script>

      // 创建XMLHttpRequest对象
      function createXHR(){
        var xhr = null;
        if(window.XMLHttpRequest){
            xhr = new XMLHttpRequest();
        }else if(window.ActiveXObject){
            xhr = new ActiveXObject("Microsoft.XMLHTTP");
        }
        return xhr;
      }
      // 幻灯片模块 目前API处于开发阶段，请求频率受限，每小时50次
      function picture() {
        var xhr = createXHR();
        xhr.open('GET','https://api.unsplash.com/photos/random?client_id=bXwWoUhPeVw-yvSesGMgaOENnlSzhHYB43kZIQOR8cQ',true);
        xhr.onreadystatechange = function(){
            if(this.readyState == 4){
              var data = JSON.parse(this.responseText)
              console.log(data)
              document.getElementsByClassName('page')[0].style.backgroundImage = 'url('+data.urls.regular+')'
            }
        }
        xhr.send(null);
      }

      picture()
      setInterval("picture()", 60 * 1000 * 60)
      
      // setInterval(function() {
      //   document.getElementsByClassName('page')[0].style.backgroundImage = ''
      //   document.getElementsByClassName('page')[0].style.backgroundImage = 'url(https://source.unsplash.com/random/1072x1448)';
      // }, 1000 * 60)

      // 时钟模块
      function clock() {
        var date = new Date()
        var utc8DiffMinutes = date.getTimezoneOffset() + 480
        date.setMinutes(date.getMinutes() + utc8DiffMinutes)

        var hour = date.getHours()

        var timeString = hour + ':' + ('0' + date.getMinutes()).slice(-2)
        var dateString = (date.getMonth() + 1) + '月' + date.getDate() + '日'
        var weekList = ['日', '一', '二', '三', '四', '五', '六']
        var weekString = '星期' + weekList[date.getDay()]

        document.getElementById("time").innerHTML = timeString
        document.getElementById("date").innerHTML = dateString + " " + weekString
      }

      clock()

      setInterval("clock()", 60 * 1000)
    </script>
</body>
</html>